Cisco 10720 Configuration Guide - Page 125

Chapter 5 Maintaining the Cisco 10720 Internet Router Disconnecting Power from the Router Disconnecting Power from the Router You must power down your router before maintaining any field-replaceable unit. The following sections present procedures to power down the router: • Overview, page 5-3 • Disconnect Device Safety Warning, page 5-3 • Tools and Equipment Required, page 5-4 • Powering Down the Router, page 5-4 • Verifying the Router Is Powered Down, page 5-6 Overview The following information demonstrates how to safely power down the router and disconnect site power for a router with AC or DC dual power supplies. Caution The router must be used with the power supply type that originally shipped with the router from the factory and within in its marked electrical ratings. The AC power supply must be exchanged for AC; the DC power supply must be exchanged for DC. Cisco will not support this product if the power supply is exchanged for a non-factory power supply. Cisco does not support the router if the power supply is changed from AC power supply to a DC power supply, or vice versa. Note The power switch is part of the power supply. Disconnect Device Safety Warning The router power source must be disconnected before performing any maintenance task on the hardware modules. Warning Only trained and qualified personnel should be allowed to install or replace this equipment. 1030 Warning The plug-socket combination must be accessible at all times because it serves as the main disconnecting device. Statement 66 Warning This unit might have more than one power cord. To reduce the risk of electric shock, disconnect the two power supply cords before servicing the unit. Statement 14 Warning A readily accessible two-poled disconnect device must be incorporated in the fixed wiring. Statement 91 78-13062-10 Cisco 10720 Internet Router Installation and Configuration Guide 5-3